Brenda is unlikely to be swayed either, given the disciplined upbringing she has got from her father.

In a recent profile on van Gaal, the Guardian's Barney Ronay revealed: "There are two forms of the word 'you' in Dutch, the familiar and the formal. At home Van Gaal has always insisted his two daughters use the formal version when addressing him, even in private."

Van Gaal was handed a three-year contract with United earlier this month and will begin work at the club once he is finished guiding Holland through the upcoming World Cup in Brazil.